Hydrocarbon-motor



H. D. CHURCH.

HYDROCARBON MOTOR.

APPucAHoN FILED N0v.1o.191.

Patented June 28, 1921.

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PATENT OFFICE.

aenonn n,` cannon, or DETROIT, MICHIGAN, ASSIGNOB. To .PACKARD MOTOR een. COMPANY, or DETROIT, MICHIGAN, A CORPORATION or MIOHIGAN.

HYnRooAnBoN-MOTOR.

To all wtofm, it may concern:

Be it known that I, HAROLD D. CHURCH, a cltizen of the United States, and 'resident of Detroit, Wayne county,A State of Michigan, have invented certain new and useful improvements in Hydrocarbon-Motors', `of which the following is a specification.

This invention relates to hydrocarbon motors and particularly to the throttle, the governor, and the connections therebetween.

One of the Objects of 'the invention is to simplify the construction of the connecting means between the governor and the throttle valve of a hydrocarbon motor.

^ Another Object of the invention is to provide connecting means between the governor and throttle valve ofy a hydrocarbon motor thatl will withstand extremely hard usage.

Another object of the invention is to provide a novel arrangement of spring means for the governor of a hydrocarbon motor.

Another object of the invention is to provide connecting devices which may be used between the governor and throttle valve of a hydrocarbon motor, with a novel arrangement of lubricating means.

Other objects of the invention will appear from the following description taken in con'- nection with the drawings which form a part of this specification, and in which:

lFigure 1 is a side elevation and part sectional view of a hydrocarbon motor embodying the invention;

Fig., 2 is an enlarged vertical ,sectional view through part of the connecting means between the governor and throttle valve of the motor shown in Fig. 1;

Fig. 3 is a transverse vertical section substantially on the line 3--3 of Fig. 2; and

Fig. Llis a detail perspective view of the governor rod button.

Referring to the drawings, 10 represents the crank case or supportingbase of a hydrocarbon motor, and 11 is a cylinder block mounted thereon. 12 indicates the motor carbureter which is connected to the intake manifold 13 by an intake pipe 14. In the intake pipe is a throttle valve 15 which is actuated byan arm 16 in a casing 17 secured to the intake pipe 14. An adjustable".

stop 1S coperates with a lug 19 on the arm 16 to determine the closed position of the throttle. In other words, the closed position of the throttle is its idling position wherein a sin/all amount of mixture is permitted to Specification of Letters Patent.

Patented J une 28, 1921.

. Application tiled November 10, 1917. Serial No. 201,294.

pass the throttle to permit the motor to run very slowly. f

` Suitably supported upon the motor crank case 10 is a casing in which is a governor 21 operated by a shaft 22 and a gear 23 thereon. It will -,be understood that the gear 23 is connected to be. driven by one of the motor gears such `as the cam shaft gear, not shown.

The shaft 22 is shown as of hollow construction and Vit extends through and Operates the impeller of a water pump 24;' which 1s also mounted on the crank case 10. Thus the extended end of the shaft 22 is shown at 22a in Figs. l and 2, this part of the shaft projecting through the pump 24.

The governor 21, above-referred to, is V keyed to the end of the shaft 22 and secured thereon as by a nut 25, and the arms 21a of the governor are pivoted at 26 and have their operating ends 27 in contact with the head 28 of an operating rod 29. which extends entirely through the driving shaft 22. The part of the rod 29 passing through the shaft 22 is indicated in dotted Vlines in Fig.

1, and the end of the rod which projects from the part 221 of the shaft 22 is indicated at 29a, being in the form of a button having may be provided at the other end of the driving shaft 22. From the above it will be understood that upon the rotationrof the shaft 22 by means of the gear 23 the arms 21a of the governor will swing outwardly by centrifugal force 'and the ends 27 'will thereby push the rod 29 toward the right in Fig. 1. It will be seen also that the mechanism thus far described contains no spring for returning the governor to its inoperative position, as shown in Fig. 1.

A connecting device between the governor and the throttle valve, above referred to, as well as a spring for yieldingly holding the governor in its inoperative position and the throttle valve in its open position, are supported on the crank case 10 .in a support or casing 32. The principal parts of this connecting device are a rock shaft 33 which is connected to the throttle arm 16 as by an arm 34, a link 35, and a bearing support 36 which is shown as supported by and immediately beneath the rock shaft. The rock shaft and bearingsupport are housed within the casing 32, and the connecting rod 35 above referred to is shown as housed within a tube 37 which extends from the casing 32 to the casing 17 for the throttle arm 16. Thus all of the connections between the governor and throttle valve are suitably housed to protect them from'dirt and from beingtampered with.l

f The bearing support 36 is carried by the rock shaft 33 on a pair of arms 38 which are keyed to the rock shaft as shown in Fig. 3. and the connection between the arms 38 and the support 36 is a pivotal one as shown at 39, particularly in Figs. 1 and 2. Thus it will be seen that the swinging movements of the arms 38 with the rock shaft 33 are also conveyed to the support 36 except that the latter may be retained'in a vertical position by swinging on its pivots 39. Y

The support 36 is shown as of hollow conv struction and carries within it a thrust bearing 4() which comprises a series of balls 41, a disk 42 having anouter flat face 43 adapted to coperate with the flat face 30 of the button29a hereinabove described, and a ring 44 having an outer spherical face 45 adapted to Acoperate with a ring 46 retained in the support by aca-p 47 threaded therein yand locked by awire 48. The cap .47 is formed with a centralyboss 49 and a spring 50 sur rounds the boss and bears against the cap t'o yieldingly press the support 36 toward the left in Figs. 1 and 2. The other end of the spring 50 bears against the inner end of a sleeve 51 which is threaded into the casing 32, as shown particularly in Fig. 1, thus'pro- ,viding an adjustment for the spring 50.

' The sleeve 51v maybe locked in adJusted position by a nut 52. l,

From the above description it will be seen that the support 36 is arranged directly between the rod 29 and the spring 50 and the longitudinal axes of the rod and the spring, as well-as of the bearing 40, are substantially in line. Of course the swinging movement of the support 36 will carry the center 0f the bearing 40 slightly out of line with the axis of the rod 29, but this will be taken care of bythe flexibility of the spring 50 and a slight relative movement between the flat ground surfaces 30 and 43 of the button 29a and vdisk 42 respectively. Also, any slight angularity will be taken care of .by the automatic adjustment of the ring 44 in the ring 46 by reason of the spherical surfaces thereof. p

It will benoted that the rotating driving shaft 22 has its end 22a extending into the casing32` through an opening 53 which is slightly larger than the shaft so that absolutely correct alinemeut-of these `parts is not necessary.l The support 36 also is provided with an opening 54 somewhat larger than the button 29a so that the latter may .enter the support and need not be accurately alined with the center thereof. This con--j struction of parts greatly facilitates manufacture and permits of much more simple construction in the connection between the support 36 and its carrier.

The spring 50, above referred to, is of course under compression and through the bearing support 36 and the bearing therein it yieldingly presses the rod 29 toward the left in Figs. l and 2, thus holding the governor in its inoperative position. When the governor operates the rod 29 is moved endwise against the action of the spring 50. Byreason of the fact that the spring 50 is mounted in a stationary part of the casing it is readily adjustable while the motor is running. The spring also acts through the support 36, rock shaft 33 and the connections to the throttle arm 16 to yieldingly retain the throttle valve in its open position, theA valve being closed or partly so by the action of the governor, as will be understood from the above description.

Means are provided for lubricating the entire connecting device within the casing 32 by a single oil feeding means. The rock shaft 33 is drilled out so that it is hollow, as shown in Figs.' 2 and 3, and an oil feeding cup 55 is connected to the shaft through a channel 56 and a transverse hole 57 in the 100 rock shaft. From the oil thus fed to the interior of the rock shaft the bearings` 58 and 59 for the rock shaft are lubricated through the opening 57 which leads to agroove 60 formed in the rock shaft adjacent the bear- 105 ing 58 and a hole 61 which leads to the bearing 59.- Y

Means are provided for carrying' oil from the interior of the rock shaft to the support 36 in the form of a pipe 62 which ex 110 tends downwardly from the rock shaft to a point directly over the support 36. The top of the support is in theu form of a cup'63l 'directly under the end of the tube 62 and an opening 64 permits the oil received by '115 the cup tol pass to the interior of the sup-' port 36 and therefore to the bearing 40. Thus the hollow support `36 may be filled up to a level with the bottom of the openl ing 54 before overflowing. Also a small `120 amount of oil will be carried along the button 29a andthe end of the shaft 29 to the bearing 31, this bearing requiring a very small amount o\f lubricant since the rod 29 does not necessarily turn in it but only Islides 125 endwise in it as the governor operates.

It will be observed that7 the opening through the pipe 62 is somewhat smaller than the inlet channel 56 from the feeding cup 55 so that the hollow rock shaft 33 will 130 act as a sort of measuring device for feeding oil to the entire mechanism. Thus oil may be fed to the rock, shaft through the channel 56 faster than it will run out through the tube 62. Oil may be put into the cup 55 untilit appears to be full and this will give suilicient lubrication to the bearings 58 and 59 and the oil will then run out of the rock shaft through the tube 62 and into the cup 63 and hollow support 36 until the latter is filled. By oiling the device in this manner at regular intervals all of the parts will receive approximately the right amount of lubrication. y

It will be seen further that the outlet end of the `tube 62 will be over tie cup 63 regardless of the position of the latter, as the tube will turn with the rockshaft as the latter is rocked by the shifting of the 'support 36 due to the action of the governor.

It will be understood further that my invention is not limited to the details of construction shown and other forms may be used without departing from thespirit or scolpe of the invention.

aving thu's described my invention, what I claim and desire to secure by Letters Pat- 1. In a hydrocarbon motor, the combination with va throttle valve therefor, a centrifugal governor of a hollow shaft yfor, driving said governor, a rod extending through said shaft and operated by said governor, a spring adapted to exert pressure againstV the said rod for yieldingly holding the governor inoperative and the throttle open, a member interposed between said rod and said spring capable of lateral movement with respect to inoperative.

3. The combination with the throttle valve of a hydrocarbon motor, of a governor, a rock shaft arranged between the governor and the valve, connections from said shaft to the valve, a device entirely supported by said rock shaft, a rod extending from the governor to said device, and a spring acting directly against said device to p1ess'"'the governor toy inoperative position.

4. In a hydrocarbon motor, in combination, a throttle valve, a governor, a connecting device between the throttle valve and,

governor comprising a rock shaft having an arm, a bearing support on said arm, a bearing in said support and means for feeding oil to said rock shaft and from said rock shaft to said support and bearing.

5. In a hydrocarbon motor, in combination, a throttle valve, a governor, a connecting device between the throttle valve and governor comprisin a hollow rock shaft having an arm, a hoizlowbearing support on said arm, a bearing in said support and means for feeding oil to said rock shaft and from said rock shaft to said support and bearing.

6. In a hvdrocarbony motor, in combina-v tion, a throttle valve, a governor,A a connecting device between the throttle valve and governorcomprising a rock shaft, bearings for said shaft, a bearing support carried by 1 saidrock shaft, a bearing in said support and means `for feeding oil to the bearings of said rock shaft and through the rock shaft'to said support.

7. In a hydrocarbon motor, in combination, a throttle valve, a governor, a connecting device between the throttle valve and governor comprising a rock shaft, a earing'supp'ort carried by said rock shaft and having a'cup on theupper surface thereof,

Asaid rock shaft-havin as out leadingA to a point over said cup. a bearing in said support and means for feeding oil to said shaft and through said spout and cup to said support and its bearing'.

8. In a hydrocarbon motor, in combination, a throttle valve, a governor, and connections from the governor to the valve comprising a casing, a rock shaft inthe casing having connections running tothe valve, a rod from the governor extending into said casing, a hollow bearing support carried by said roclrshaft, a bearing in said support coperating with said rod, a spring coperating with said support, and means for feeding oil to said support through said rock shaft.

9. In a hydrocarbon motor, in combination, a throttle valve,.a governor, and connections from the governor to the valve comprising a casing, a rock shaft in the casing having connections running to` the valve, a rod from the governor extending into said casing, a hollowA bearing support carried by said rock shaft, a bearing in said support coperating with said rod, a spring coperating with said support, and means for feeding oil to the rock shaft and through the latter to said support and its bearing.

10. In a hydrocarbon motor, in combinatiolna throttle valve, a governor, a governor shaft, and connections from the governor to the valve comprising-a rock Lshaft .having connections to the valve,A a bearingsupport adapted` to swing withsaid rocky shaft, a bearing in said support, a rod operated by the governor and movableaxially, the end,

of 'said rodA extending beyond the governor shaft and slidingly engaging said bearing to permit slight lateral relative movement as the bearing support swings in response to the `action of the rod, and a spring acting yieldiner against the other side of said bearing support.

11. In -a hydrocarbon motor, in combina tion, a'throttle valve, a governor, and connections from the governor to the valve comprising aroclc shaft having connections to the valve, a bearing support adapted to swing with said rock shaft,' a bearing in said support, movable with respect thereto, a rod operated by the governor and movable'axiallv, the end of said rod slidingly engaging said bearing to permit slight lateral relative movement as the bearing support swings in response to the action of the rod, and a springv acting yieldingly onisaid governor through said bearing and said rod.l

12. In a hydrocarbon motor', in combination, a throttle valve, a governor, and con- With said rock shaft, a thrust bearing mountl ed in and engaging said support, an endwise movable rod operated by the governor and having its end slidingly engaging said bearing to permit slight variation lin axial alinement of rod and bearing as the rock shaft swings, and a s ring acting yieldingly to hold the rock sha t against swinging.

In testimony whereof alix my signature.

` HAROLD D. CHURCH. 

